*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001111
Feb001034
Mar007007
Apr01547300488
May2106654730011140
Jun8215862650021859
Jul34784421650010043
Aug1471452001473
Sep032665002668
Oct1383000834
Nov01210022
Dec001003949
Total5940124836205348598